1a68+4b2+53c=1068+100.a+402+10.b+530+c=2000+abc
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Điền dấu <>=vào...
1a78+4b2+53c...abc+2005
dien dau < > =
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cac ban dien dau giup minh nhe
Co mot mieng dat hinh binh hanh canh day bang 32m.Nguoi ta mo rong mieng dat bang cach tang canh day them 4mduoc mieng dat moi hon dien tich mieng dat ban dau la 56m2.Hoi dien tich ban dau la bao nhieu
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dien dau
123456789..................987654321
987654321...................123456789
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